Sullivan Pond Dam

Alexauken Creek-TR· Hunterdon, New Jersey· Built 1959· Earth· 19 ft tall
High Hazard Recreation Private

Key Takeaway

Sullivan Pond Dam is classified as high hazard in New Jersey. It was completed in 1959 and is 67 years old. Its primary use is recreation. High hazard means loss of life is likely if the dam fails — it does not indicate the dam's current condition. Learn more.

Physical Details

Dam Height 19 ft (taller than 70% in NJ)
Dam Length220 ft
Dam TypeEarth
Max Storage76 acre-ft
Normal Storage18 acre-ft
Surface Area6 acres
Drainage Area1 sq mi
Max Discharge2,200 cfs
Year Completed1959 (67 years old)
NID IDNJ00153

Safety Information

High Hazard

Loss of human life is likely if the dam fails.

Hazard potential describes downstream consequences of failure, not the dam's current condition. What does this mean?

Emergency Action Plan: Yes
Last Inspection: September 7, 2021
State Regulated: Yes
Regulatory Agency: NJDEP

Ownership

Mark Sullivan & Kelly Taylor

Private

Nearby Dams

Frequently Asked Questions

What is the hazard classification of Sullivan Pond Dam?

Sullivan Pond Dam is classified as High Hazard. Loss of human life is likely if the dam fails. This classification refers to the potential downstream consequences of a failure, not the dam's current structural condition.

Who owns and operates Sullivan Pond Dam?

Sullivan Pond Dam is owned by Mark Sullivan & Kelly Taylor (Private). The owner is responsible for maintenance, inspections, and compliance with dam safety regulations.

When was Sullivan Pond Dam built?

Sullivan Pond Dam was completed in 1959, making it 67 years old. Many U.S. dams were built between the 1930s and 1970s during a period of major infrastructure investment.

What is the primary purpose of Sullivan Pond Dam?

Sullivan Pond Dam serves the following purposes: Recreation. Many dams in the U.S. are multi-purpose, supporting flood control, water supply, recreation, and other uses.

How tall is Sullivan Pond Dam?

Sullivan Pond Dam has a dam height of 19 ft. Dam height is measured from the natural streambed at the downstream toe to the top of the dam, and may differ from the visible height.

When was Sullivan Pond Dam last inspected?

Sullivan Pond Dam was last inspected on September 7, 2021. Inspection dates indicate when a formal review occurred, not the results of that inspection.

Data from the National Inventory of Dams (NID) maintained by the US Army Corps of Engineers. Dam conditions may have changed since the last update. This site is not affiliated with USACE. Do not use for emergency planning — contact your local dam safety program.